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From Wikibooks, the open-content textbooks
collection

This category contains books on
physics: the study of matter
and its motion through spacetime and all that derives from these,
such as energy and force. Physics covers a wide range of phenomena,
from the smallest sub-atomic particles, to the largest galaxies.
Physics aims to both connect the things we see around us to root
causes, and then to try to connect these causes together in the
hope of finding an ultimate reason for why nature is as it
is.